2020-2025
From January 2018 to December 2024, 75% of Lassa fever confirmed cases were from Ondo (33%), Edo (31%) and Bauchi (11%).
In 2025, as of epi week 22, 87% of LF cases are from Ondo (31%), Bauchi (25%), Edo (16%), and Taraba (16%) States.
Total confirmed cases: 747
Deaths from Confirmed Cases: 142
Case Fatality Ratio: 19%
Number of Health Care Workers: 22
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 1775 | 229 | 28 | 12% | ||||
| 2024 | 1454 | 231 | 16 | 7% | ||||
| 2023 | 1607 | 309 | 33 | 11% | ||||
| 2022 | 848 | 221 | 40 | 18% | ||||
| 2021 | 375 | 86 | 25 | 29% | ||||
| 2020 | 670 | 334 | 54 | 16% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 847 | 186 | 16 | 9% | ||||
| 2024 | 787 | 159 | 29 | 18% | ||||
| 2023 | 702 | 110 | 20 | 18% | ||||
| 2022 | 684 | 115 | 12 | 10% | ||||
| 2021 | 61 | 10 | 2 | 20% | ||||
| 2020 | 282 | 44 | 20 | 45% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 1611 | 122 | 21 | 17% | ||||
| 2024 | 1714 | 198 | 26 | 13% | ||||
| 2023 | 2157 | 276 | 36 | 13% | ||||
| 2022 | 1610 | 196 | 27 | 14% | ||||
| 2021 | 1137 | 129 | 14 | 11% | ||||
| 2020 | 1332 | 330 | 39 | 12% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 313 | 116 | 34 | 29% | ||||
| 2024 | 227 | 99 | 21 | 21% | ||||
| 2023 | 273 | 93 | 29 | 31% | ||||
| 2022 | 84 | 32 | 15 | 47% | ||||
| 2021 | 55 | 18 | 11 | 61% | ||||
| 2020 | 111 | 56 | 21 | 38% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 237 | 21 | 11 | 52% | ||||
| 2024 | 276 | 43 | 24 | 56% | ||||
| 2023 | 211 | 50 | 27 | 54% | ||||
| 2022 | 219 | 39 | 18 | 46% | ||||
| 2021 | 88 | 17 | 8 | 47% | ||||
| 2020 | 230 | 76 | 22 | 29% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 69 | 15 | 4 | 27% | ||||
| 2024 | 123 | 30 | 3 | 10% | ||||
| 2023 | 39 | 11 | 1 | 9% | ||||
| 2022 | 118 | 45 | 7 | 16% | ||||
| 2021 | 7 | 2 | 0 | 0% | ||||
| 2020 | 94 | 38 | 8 | 21% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 70 | 14 | 7 | 50% | ||||
| 2024 | 30 | 4 | 2 | 50% | ||||
| 2023 | 38 | 8 | 2 | 25% | ||||
| 2022 | 191 | 21 | 8 | 38% | ||||
| 2021 | 6 | 0 | 0 | – | ||||
| 2020 | 34 | 9 | 2 | 22% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 74 | 11 | 5 | 45% | ||||
| 2024 | 1050 | 62 | 11 | 18% | ||||
| 2023 | 149 | 36 | 3 | 8% | ||||
| 2022 | 195 | 32 | 8 | 25% | ||||
| 2021 | 21 | 6 | 0 | 0% | ||||
| 2020 | 36 | 9 | 4 | 44% | ||||
Source: NCDC |
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Any questions or suggestions? Contact us: Anaïs Legand and Antoine Chaillon
As of 2025, week 22